Alberto, have you looked or tried these two devices? Low resistance, 1.3 Ohms, faster switch;
< http://www.analog.com/en/prod/0,2877,ADG859,00.html > Single switch with very low on resistance, 0.28 Ohm < http://www.analog.com/en/prod/0,2877,ADG842,00.html > At 11:23 AM 11/22/2005, you wrote: >Juan EA7FNJ wrote: > > Hi guys. > > > > I only found those components in FARNELL but I've got some free > > samples from FAIRCHILD on TSOP encapsulated. > > > > Does anybody know any substitute or more components to make the QSD? > > I have found the 'FST3126 -> 74HC4066', anyone more? > > >Hmmm, I would not use the 74HC4066 for a QSD, it has a Rdson too high... >I have used a couple of ADG704 from Analog Devices. They are not a direct >replacement (it is a multiplexer, not 4 independent switches), so some >circuit adjustment is needed, but they work quite well. > >73 Alberto I2PHD > > > > > >Yahoo! Groups Links > > > > Cecil Bayona KD5NWA www.qrpradio.com "I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... " ------------------------ Yahoo! Groups Sponsor --------------------~--> 1.2 million kids a year are victims of human trafficking. Stop slavery. http://us.click.yahoo.com/WpTY2A/izNLAA/yQLSAA/ELTolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
